Day 27: Learning Express js

Express is a popular web application framework for Node.js. It provides a simple and easy-to-use interface for building web applications and APIs. Today, we will be focusing on the Get and Post methods in Express.

Get Method in Express

The Get method in Express is used to handle incoming HTTP GET requests. This method takes two parameters: a route and a callback function. For example, to handle a GET request to the “/users” route, you would write the following code:

app.get('/users', function(req, res) {
  res.send('List of users');
});

In this example, when a user navigates to the “/users” route, the callback function will be called and the response “List of users” will be sent back to the client.

Post Method in Express

The Post method in Express is used to handle incoming HTTP POST requests. This method also takes two parameters: a route and a callback function. For example, to handle a POST request to the “/users” route, you would write the following code:

app.post('/users', function(req, res) {
  res.send('User created');
});

In this example, when a user submits a POST request to the “/users” route, the callback function will be called and the response “User created” will be sent back to the client.

These are just a few examples of how the Get and Post methods can be used in Express. There are many more methods and features available in Express, making it a versatile and powerful framework for building web applications.

Happy coding!